<span>Genetic variation can be caused by mutation (which can
create entirely new alleles in a population), random mating, random
fertilization, and recombination between homologous chromosomes during
meiosis (which reshuffles alleles within an organism's offspring)</span>
Fossil fuels and green house gases which burn holes in the ozone layer of the atmosphere causing global warming
the three types of symbiosis are: mutualism, commensalism, and parasitism. Parasitism is when one is helped one is harmed, commensalism is when one is helped and one isn't bothered, and mutualism is when all organisms are benefited. Did I help?
Transpiration occurs on plants. So the answer is D. Leaves
The continental plate is thicker and less dense while the oceanic plate is thinner and more dense.
